📝 Advanced Practice Questions (Networking & OS) - Page 3
Showing questions 41 to 60 of high-level competitive standards.
Q41. Which OSI layer is responsible for process-to-process delivery of an entire message?
Correct Answer: A) Transport Layer
Explanation: The transport layer ensures complete data transfer from source to destination process.
Q42. What is the default port number for HTTP protocol?
Correct Answer: C) 80
Explanation: Port 80 is the standard port for unencrypted HTTP web traffic.
Q43. Which scheduling algorithm allocates CPU to the process with the shortest next CPU burst?
Correct Answer: B) SJF (Shortest Job First)
Explanation: SJF minimizes average waiting time for a given set of processes.
Q44. What does IP address version 4 (IPv4) consist of in terms of bit length?
Correct Answer: A) 32 bits
Explanation: IPv4 addresses are 32-bit integers divided into 4 octets.
Q45. Which of the following is a deadlock prevention method?
Correct Answer: C) Circular wait elimination
Explanation: Eliminating any of the 4 Coffman conditions (including circular wait) prevents deadlock.